Techser Power Solutions Pvt. Ltd manufactures On-line UPS- Uninterruptible Power Supply with Built-In Slot. Techser Power Solutions Pvt. Ltd is an ISO 9001:2000 recognized company. Techser Power Solutions Pvt. Ltd offers different types of online ups, Line Interactive ups etc. On-line UPS- Uninterruptible Power Supply with Built-In Slot is an electrical apparatus that provides emergency power to a load when the input power source, typically the utility mains, fails. On-line UPS- Uninterruptible Power Supply with Built-In Slot takes input from 3Phase power and providing clean 3 phase [4wire] output.